/// <summary>
/// Updates the user interface of this form.
/// </summary>
private void UpdateUI()
{
// set values of size numeric up-downs
widthNumericUpDown.Value = Magnifier.Size.Width;
heightNumericUpDown.Value = Magnifier.Size.Height;
// set value of zoom numeric up-down
zoomNumericUpDown.Value = Magnifier.Zoom;
// display pen settings
Pen pen = Magnifier.BorderPen;
if (pen != null)
{
borderColorPanelControl.Color = pen.Color;
borderWidthNumericUpDown.Value = (decimal)pen.Width;
}
else
{
borderColorPanelControl.Color = Color.Black;
borderWidthNumericUpDown.Value = 0;
}
// set elliptical outline check box value
ellipticalOutlineCheckBox.Checked = Magnifier.UseEllipticalOutline;
// set visual tools visibility check box value
showVisualToolsCheckBox.Checked = Magnifier.ShowVisualTools;
// set processing commands check boxes to false
invertCheckBox.Checked = false;
posterizeCheckBox.Checked = false;
oilPaintingCheckBox.Checked = false;
grayscaleCheckBox.Checked = false;
// if the processing command is CompositeCommand
if (Magnifier.ProcessingCommand is CompositeCommand)
{
CompositeCommand compositeCommand = (CompositeCommand)Magnifier.ProcessingCommand;
// get sub commands
ProcessingCommandBase[] commands = compositeCommand.GetCommands();
// set processing commands check boxes
for (int i = 0; i < commands.Length; i++)
{
if (commands[i] is InvertCommand)
{
invertCheckBox.Checked = true;
}
else if (commands[i] is PosterizeCommand)
{
posterizeCheckBox.Checked = true;
}
else if (commands[i] is OilPaintingCommand)
{
oilPaintingCheckBox.Checked = true;
}
else if (commands[i] is ChangePixelFormatToGrayscaleCommand)
{
grayscaleCheckBox.Checked = true;
}
}
}
}